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2022

Planetarium Talks: Extra dimensions and microscopic black holes

Vest, A. (2022). Planetarium Talks: Extra dimensions and microscopic black holes.

Abstract

Although Einstein’s general theory of relativity precisely describes the properties of gravity, it is not clear why gravity is so much weaker than the other fundamental forces of nature. The weakness of gravity could be explained, however, by speculative theories that predict spatial dimensions in addition to the three dimensions we experience in our everyday live. One spectacular way of revealing these extra dimensions would be through the formation of microscopic black holes, which, if there are extra dimensions, might be produced at the Large Hadron Collider. Microscopic black holes would be harmless, but their discovery would revolutionize our physical world picture.
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Vest, Anja

Fachbereich

Fachbereich 2: Energy and Life Science
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2022

Presentation

Anja Vest
Finanzierungs- & Förderangebote für Ecopreneure

Neumann, T., Widrat, A., & Fichter, K. (2022). Finanzierungs- & Förderangebote für Ecopreneure. Gründerplattform. Abgerufen von https://cdn.kettufy.io/gp.kettufy.io/documents/gruenderplattform.de/Material-3_Broschuere-FinanzierungFoerderungangebote.pdf
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Forschungsprojekt

EU-REACT StartUp SH

Abteilung/Einrichtung

Jackstädt-Zentrum Flensburg (JZF)

Profilbereich

Start-up- und KMU-Management

Forschungsfeld

Entrepreneurship

Fachbereich

Fachbereich 4: Wirtschaft
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2022

Journal Article

Thomas Neumann

Alexandra Widrat

Klaus Fichter
Smartphone-assisted Psychoeducation in Adult Attention-Deficit/Hyperactivity Disorder: A Randomized Controlled Trial

Selaskowski, B., Steffens, M., Schulze, M., Lingen, M., Aslan, B., Rosen, H., … Braun, N. (2022). Smartphone-assisted Psychoeducation in Adult Attention-Deficit/Hyperactivity Disorder: A Randomized Controlled Trial. Psychiatry Research, 114802. http://doi.org/https://doi.org/10.1016/j.psychres.2022.114802

Abstract

Psychoeducation is generally recommended in the treatment of adult Attention-Deficit/Hyperactivity Disorder (ADHD), but only few studies have systematically assessed the effects of structured clinical psychoeducation. Moreover, although a considerable number of psychoeducational mobile applications exist, none have provided scientific evidence for their effectiveness or safety. Therefore, the present randomized controlled trial investigated a newly developed, free-to-use psychoeducation app for adults with ADHD as a support to a clinical psychoeducation group. 236 adults with ADHD were contacted for study participation, of whom 60 were finally randomized to a psychoeducation group supported either by our developed smartphone app (n = 30) or by traditional pen-and-paper brochures (n = 30). Psychoeducation treatments were conducted in groups of 10, with 8 weekly one-hour sessions between March 2019 and November 2020. Observer-rated ADHD symptom severity (IDA-R interview) was examined as the primary outcome parameter before and after treatment. Across both interventions, ADHD core symptoms were significantly reduced. Notably, the smartphone-assisted psychoeducation was significantly more effective in improving inattention and impulsivity and led to higher homework compliance than the brochure-assisted psychoeducation. No adverse events were reported.
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Wallbaum, Torben

Fachbereich

Fachbereich 3: Information und Kommunikation
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2022

Journal Article

Benjamin Selaskowski

Maria Steffens

Marcel Schulze

Meike Lingen

Behrem Aslan

Helena Rosen

Kyra Kannen

Annika Wiebe

Torben Wallbaum

Susanne Boll

Silke Lux

Alexandra Philipsen

Niclas Braun

Adult ADHD

Mobile app

Digital health

mHealth applications

Medical technology

RCT

Psychoeducation

smartphone

Group psychotherapy
Tax Misperception and its Effects on Decision Making – Literature Review and Behavioral Taxpayer Response Model

Blaufus, K., Chirvi, M., Huber, H.-P., Maiterth, R., & Sureth-Sloane, C. (2022). Tax Misperception and its Effects on Decision Making – Literature Review and Behavioral Taxpayer Response Model. European Accounting Review, 31(1). http://doi.org/10.1080/09638180.2020.1852095

Abstract

Previous accounting research shows that taxes affect decision making by individuals and firms. Most studies assume that agents have an accurate perception regarding their tax burden. However, there is a growing body of literature analyzing whether taxes are indeed perceived correctly. We review 128 studies on the measurement of tax misperception and its behavioral implications. The review reveals that many taxpayers have substantial tax misperceptions that lead to biased decision making. We develop a Behavioral Taxpayer Response Model on the impact of provided tax information on tax perception. Besides individual traits, characteristics of the tax information and the decision environment determine the extent of tax misperception. We discuss opportunities for future research and methodological limitations. While there is much evidence on tax misperception at the individual level, we hardly find any research at the firm level. Little is known about the real effects of managers’ tax misperception and on how tax information is strategically managed to impact stakeholders. This research gap is surprising as a large part of the accounting literature analyzes decision making and disclosure of firms. We recommend a mixed-method approach combining experiments, surveys, and archival data analyses to improve the knowledge on tax misperception and its consequences.
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Chirvi, Malte

Fachbereich

Fachbereich 4: Wirtschaft
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2022

Journal Article

Kay Blaufus

Malte Chirvi

Hans-Peter Huber

Ralf Maiterth

Caren Sureth-Sloane
Good Tech and Social Good: Value Creation by Korean Social and High-Tech Oriented Start-Ups

Berg, S.-H., & Mitra, J. (2022). Good Tech and Social Good: Value Creation by Korean Social and High-Tech Oriented Start-Ups. Volume 8 Issue 1, 8(1), 29–45,. Abgerufen von https://EconPapers.repec.org/RePEc:sae:jouent:v:8:y:2022:i:1:p:29-45

Abstract

Through an exploration of Korean high-tech social enterprises, we aim to identify and explore critically (a) how socially engaged, early stage, high technology firms combine social and economic objectives with which to scale up their ventures; and (b) how socially engaged firms seek entrepreneurial opportunity development, including the internationalisation process and the support of stake holding institutions to help scale up the value creation process. We highlight ‘people’, ‘organisations’ and the ‘environment’ dimensions, enabling an understanding of the drivers of socially entrepreneurial activity both from individual and societal perspectives. The analytical framework of our study is based on empirical data acquired from individual in-depth interviews, group interviews, active participatory observations and survey data from 2018 to 2021. We found that social motivation and objectives of the entrepreneurs are equally strong drivers and that they are the principal factors for the scaling up process. The motivation is strengthened by the proactive role of government initiatives which also attract other key stakeholders in the growth process. A combination of digital technology with a high degree of social motivation of the entrepreneurs tends to lead to the development of international market opportunities and attract the interests of international foundations.
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Jackstädt-Zentrum Flensburg (JZF)

Profilbereich

Start-up- und KMU-Management

Forschungsfeld

Entrepreneurship

Fachbereich

Fachbereich 4: Wirtschaft
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2022

Journal Article

Su-Hyun Berg

Jay Mitra

Social and technological entrepreneurship

high-tech start-ups

digital technology

South Korea

internationalisation
A symbolic framework to obtain mid-fidelity models of flexible multibody systems with application to horizontal-axis wind turbines

Branlard, E., & Geisler, J. (2022). A symbolic framework to obtain mid-fidelity models of flexible multibody systems with application to horizontal-axis wind turbines. Wind Energy Science, 7, 2351–2371. http://doi.org/10.5194/wes-7-2351-2022

Abstract

The article presents a symbolic framework (also called computer algebra program) that is used to obtain, in symbolic mathematical form, the linear and nonlinear equations of motion of a mid-fidelity multibody system including rigid and flexible bodies. Our approach is based on Kane's method and a nonlinear shape function representation for flexible bodies. The shape function approach does not represent the state of the art for flexible multibody dynamics but is an effective trade-off to obtain mid-fidelity models with few degrees of freedom, taking advantage of the separation of space and time. The method yields compact symbolic equations of motion with implicit account of the constraints. The general and automatic framework facilitates the creation and manipulation of models with various levels of complexity by adding or removing degrees of freedom. The symbolic treatment allows for analytical gradients and linearized equations of motion. The linear and nonlinear equations can be exported to Python code or dedicated software. There are multiple applications, such as time domain simulation, stability analyses, frequency domain analyses, advanced controller design, state observers, and digital twins. In this article, we describe the method we used to systematically generate the equations of motion of multibody systems and present the implementation of the framework using the Python package SymPy. We apply the framework to generate illustrative land-based and offshore wind turbine models. We compare our results with OpenFAST simulations and discuss the advantages and limitations of the method. The Python implementation is provided as an open-source project.
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Geisler, Jens

Profilbereich

Erneuerbare Energien und nachhaltige Entwicklung

Fachbereich

Fachbereich 2: Energy and Life Science
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2022

Journal Article

E. Branlard

Jens Geisler

2021

Wind lidar technology development and transfer

Clifton, A., & Schlipf, D. (2021). Wind lidar technology development and transfer. http://doi.org/10.5281/zenodo.4817725 (Original work published 2026)
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Schlipf, David
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2021

Miscellaneous

Andrew Clifton

David Schlipf
Lidar Wind Preview Quality Estimation for Wind Turbine Control

Guo, F., & Schlipf, D. (2021). Lidar Wind Preview Quality Estimation for Wind Turbine Control. In American Control Conference. New Orleans, LA, USA. http://doi.org/10.23919/ACC50511.2021.9483442 (Original work published 2026)
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Schlipf, David
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2021

Conference Paper

Feng Guo

David Schlipf
The impact of wind evolution and filter design on lidar-assisted wind turbine control

Guo, F., Schlipf, D., & Chen, Y. (2021). The impact of wind evolution and filter design on lidar-assisted wind turbine control. http://doi.org/10.5281/zenodo.4890902 (Original work published 2026)
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Schlipf, David
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2021

Miscellaneous

Feng Guo

David Schlipf

Yiyin Chen
Assessment of a State-Feedback Controller and Observer in a Floating Wind Turbine Scaled Experiment

Lemmer, F., Lehmann, K., Raach, S., Al, M., Skandali, D., Schlipf, D., … Cheng, P. W. (2021). Assessment of a State-Feedback Controller and Observer in a Floating Wind Turbine Scaled Experiment. http://doi.org/10.5281/zenodo.5004916 (Original work published 2026)
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Schlipf, David
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2021

Miscellaneous

Frank Lemmer

Katja Lehmann

Steffen Raach

Mees Al

Danai Skandali

David Schlipf

Wei Yu

Po Cheng

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2022

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